2165442363 has 16 divisors (see below), whose sum is σ = 3666357760. Its totient is φ = 1237395528.

The previous prime is 2165442317. The next prime is 2165442379. The reversal of 2165442363 is 3632445612.

It is not a de Polignac number, because 2165442363 - 2¹² = 2165438267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2165442313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5728495 + ... + 5728872.

It is an arithmetic number, because the mean of its divisors is an integer number (229147360).

Almost surely, 2^2165442363 is an apocalyptic number.

2165442363 is a deficient number, since it is larger than the sum of its proper divisors (1500915397).

2165442363 is a wasteful number, since it uses less digits than its factorization.

2165442363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11457383 (or 11457377 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 2165442363 is about 46534.3138232423. The cubic root of 2165442363 is about 1293.7455715874.

Adding to 2165442363 its reverse (3632445612), we get a palindrome (5797887975).

The spelling of 2165442363 in words is "two billion, one hundred sixty-five million, four hundred forty-two thousand, three hundred sixty-three".